The 24 Caprices, Op. 1 by Niccolo Paganini (1782 - 1840). Itzhak Perlman (1945 - ), violin. This was recorded from a single LP which clocked in at 1:12:12. Unusually long for an LP but it's far from the longest. A French label (Trimicron) once issued all six Brandenburg Concertos on a single LP playing for 1:54:45. You can look it up. Transfer from the original 1972 Angel stereo LP S-36860 by Bob Varney.